michener



E. H. MICHENER.

STAPLING MACHINE.

APPLICATION FILED MAY 11, 1915.

Patented Aug. 1, 1916.

6 SHEETS-SHEET I m: Ivan/m rnsns ca 0., WASNINCTUPL n c E. H. MICHENER.

STAPLING MACHINE.

APPLICATION FILED MAY 17. 1915.

Patented Aug. 1, 1916.

6 SHEETSSHEET 2 lmuuvboz E. H. IVHCHENER.

STAPLING MACHINE.

APPLICATION FILED MAY [7. I915.

Patented Aug. 1, 1916.

6 SHEETS-SHEET 3.

Gamma E. H. MI CHENER. STAPLING MACHINE.

APPLICATION FILED MAY 17. 1915.

Patented Aug. 1, i916.

6 SHEETS-SHEET 4.

E. H. MHIHENER.

STAPLING MACHINE.

APPLICATION FILED MAY 17. 1915.

Patented Aug. 1, 1916.

6 SHEETS-SHEET 5 III 4:]

ml.- mums I'EIERS no,v r-ummuma WASHINCYON, n. c.

E. H. MICHENER.

STAPLING MACHINE.

APPLICATION FILED MAY 17, 1915.

l 1 9 3,984 I Patented Aug. 1, 1916.

6 SHEETS-SHEET 6.

ELWOOD H. MICHENER, OF WOOD LYNNE, NEW JERSEY, ASSIGNOR T ACME STAPLE COMPANY, OF CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

STAPLING-MACHINE.

Application filed May 17, 1915.

To (all whom it may concern.

Be it known that LELwooD H. Micnnnnn, a citizen of the United States, residing at oodlynne, Camden county, New Jersey, have invented certain new and useful Improvements in Staplin-g-lvlachines, of which the following is a full, clear, and exact de scription, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in staple setting machines; and the primary object of my invention is to provide a novel machine by means of which staples may be set in hollow articles in such manner that the staple legs or prongs may be projected through the wall of the article from the interior of the article to the exterior thereof and clenched exteriorly of the article.

My invented machine is particularly adapted for use in setting staples in shoes for various n'ir 'icses, such as securing parts of mrnamental bows, buckles, etc. thereto, so that the free ends of the legs or prongs of the staple shall not be exposed to the interior of the shoe which is objectionable for many reasons, such as the tearing or otherwise marring of the stocking of a. person wearing the shoe.

My invention includes a novel means for carrying a staple from a. suitable source of supply to a position adjacent to aistaple setting anvil and. for subsequently cooperating with the anvil to set the staple, a novel means for transferring a staple from the source of supply to the staple carrier, a novel movable means for supporting the work or article to receive the staple during the staple setting operation and prior to the movement of the staple carrier from the source of supply to the position adjacent to the anvil, and a novel foot pedal associated with the staple carrying and setting mechanism in such manner that the machine may be operated by a substantially uniform pressure during the operation of the staple carrying and setting mechanism. Accordingly, my invented machine consists of the elements and the combinations of them hereinafter described and claimed.

In the accompanying drawings, illustrating my invention: Figure 1 is a front eleration of a staple setting machine embodying my invention. Fig. 2 is a side elevation Specification of Letters Patent.

Patented An 1, 1916.

Serial No. 28,506.

of the machine. Fig. 3 is a vertical section, enlarged, on line 33 of Fig. 1, showing the staple setting mechanism in its normal position. Fig. 4 is a view similar to Fig. 3, showing additional parts in section and showing the position f the mechanism after the same has been operated to move the staple carrier from the source of staple supply to a position adjacent the anvil. Fig. 5 is a view similar to Fig. showing the position of the mechanism upon the completion of the staple setting operation and before the return to normal position. Fig. 6 is a vertical section, on line 66 of Fig. 4, through a portion of the staple carrier and the anvil. Fig. 7 is a vertical section showing the spring actuated pin for operating the staple inserting arm. Fig. 8 is a horizontal section, on line 88 of Fig. 1. Fig. 9 is a horizontal section through a portion of the staple carrier and the staple magazine, on line 9-9 of Fig. 3. Fig. 10 is a vertical section, on line 1()-10 of Fig. 9. Fig. 11 is a sectional detail on line 1111 of Fig. 8, showing the device for cushioning the staple carrier as'it changes its direction of movement. Fig. 12 is a sectional detail, on line 1'212 of Fig. 8, showing the means to prevent upward movement of the staple carrie' during the turning movement thereof.

Referring to the drawings, 2 designates the main frame of the machine having base portions 4- adapted to be secured upon a table 5 or other suitable support.

The upper portion of the frame 2 is provided with an outwardly and downwargilly extending arm 6 which supports a horizontally-extending magazine 7 adapted to contain the staples 13 to be acted upon. by the machine. The magazine 7 is provided with a guiding rib 1% embraced by the row of staples 13 which are in contact with each other and which are adapted to be fed along the rib 1-1 toward the vertical end wall or plate 15 of the magazine. The row of aples 13 is fed toward and against the end wall 15 by a suitable follower 16 which is slidably fitted to the magazine and is at tached to one end of a spring 17 which entends over the top of the magazine 7, around a curved or rounded portion 18 thereof and then back beneath the magazine to a lug 19 on the outer end thereof to which the spring 17 is attached, the spring 17 acting to more the follower 16 and row of staples toward the end wall 15. Between the inner end of the rib 14 and the end wall of the maga-e zine 7 is aspace equal or substantially equal to the'thickness of the wire forming the staples 13, and within and substantially filling this space isa vertically arranged plate which is securedto and carried by the lower end of an arm 21 whose upper end is pivoted, at 22, to the top ofthe frame 2. This arm 21 is moved on its pivot 22, as will be hereinafter explained, from the position shownin Fig. 3 to the position shown in Fig. 4 and back again, thereby moving the plate 20 back and forth within the space between the end of the rib 14 and the wall 15. The plate 20 has an outwardlyextending projection 23 which forms, in effect, a continuation of the rib 14 and which is adapted to be embraced by the innermost staple of the row 13 when the arm 21 is in the position shown in Fig. 4, and when the row of staples 13 is moved by the spring 17 up against the end wall 15. Therefore, it will be under-- stood thatwhen the arm 21 is moved from the position shown in Fig. 4 to the position shown in Fig. 3 the projection 23 will move the innermost staple 13 outwardly from the row of staples while the spring 17 presses the remaining staples of the row up against the body of the plate 20, and that when the arm 21 is returned to the position shown in Fig. 4, the spring will move the row of staples up against the end wall 15 for'a succeeding operation.

When the arm 21 moves from the position shown in Fig. 4 to the position shown in Fig. 3, the projection 23 moves a staple from the row 13 and into an opening 24 in a block 25 of acurved staple carrier or arm A 26 which is pivoted by means of a shaft 27 to the forward end of a link 28 whichis pivoted at its rearward end to the frame 2 by means of a shaft 29. The carrier or arm 26 is adapted to be moved on its pivot 27 to move its block 25 from the position shown in Fig. 3 to the position shown in Fig. 4, thus bringing the block 25 into a vertical position directly beneath an anvil 30 formed on the forward end of an arm 31 which is secured to and extends downwardly and forwardly from the bottom of the magazine 7. When the arm 26 is in this position, the staple 13 rests within the upper end of the block 25 which is slidable vertically within the arm 26 and which rests upon one end of a lever 32. This lever 32 is'fulcrumed, at 33, on the arm 26 and one end of'the lever is forced downwardly by a spring 34 within an opening in the arm 26, thereby forcing the other end of the lever 32 engaged with the bottom of the block 25 upwardly and maintaining the block 25 normally elevated, in the position shown in Fig. 3, with respect to the arm 26. The staple 13 within the upper end of the block 25 rests upon the upper end of a setting plate 35 which is slidable within the block 25 and which is secured to the arm 26 by transverse pins 36 extending through the plate 35 and through vertical slots 37 in the block 25 and into the sides of the arm 26, whereby, when the arm 26 is moved upwardly from the position shown in Fig. 4 to the position shown in Fig. 5, the block 25 will engage an article interposed between it and the anvil 30, and the upward movement of the block 25 will be arrested against said article and against the action of the spring 34 and the plate 35 will move upwardly within the block 25 and force the legs of the staple 13 up through said article and against the anvil 30 which will turn the legs of the staple inwardly and clench them and thereby set the staple. After the staple has been set, as just described, the arm 26 is first returned to the'position shown in Fig. 4, and then back to the normal position shown in Fig. 3 for a succeeding operation; and, when the carrier arm 26 is returned to the normal position, the extent of its return movement is limited by a stop plug 38 against which the arm 26 normally rests. The stop plug 38 is slidably fitted within an opening 39 in the frame 2 and it is backed by a cushion spring 40 which is located within the opening 39 and which surrounds a supporting stem 41 which extends upwardly from the stop plug 38 and through and above the top wall of the opening 39 and is supported thereon by a nut 42 screwed on to the stem 41, permitting the stop plug 38 to yield when it is struck by the carrier arm 26.

When the shaft 27 and link 28 are in the normal position, shown in Fig. 3, the shaft 27, between the arms 43 and 44 of the link 28, rests upon and is supported by a hearing portion55 of the frame 2; and when the shaft 27 is moved upwardly to the position shown in Fig. 5, the shaft 27 leaves the hearing portion 55. I I

Thelink 28 to which the carrier arm 26 is pivoted includes in its construction two spaced arms 43 and 44 which extend forwardly from the rearward end of the link and between which the shaft 27 extends and f i;

in which the shaft 27 is mounted to turn, the arm 26 being secured to the shaft 27. When the arm 26 is moved from the position shown in Fig. 3 to the position shown in Fig. 4, a stop arm 45 carried by the shaft 27 is brought into contact with the vertical face 46 of a part of the frame 2, thereby preventing the further turning of the shaft 27; and, just before the stop arm 45 strikes the face 46, a cushioned stop Fig. 11) carried by anarm 48 on the shaft 27 strikes a stop projection 49 on the frame 2 and raises the link 28 and shaft 29 slightly from the bearing55. The stop plug 47 is slidable within an opening 50 in the arm 48 plug 47 (see and is provided with a stem 51 which extends through and beyond the end wall 52 of the opening 50 and which has a head or nut 58 thereon adapted to engage the wall T2 and limit the movement of the plug 4L7. The plug i7 is cushioned by a spring 54: which encircles the stem'51 within the opening 50 between the plug 4-? and wall The raisii'ig of the link 28 and shaft 27 from the bearing 55 before the plug -17 strikes the stop sill is prevented by an arm 56 on the frame 2, extending part way over the shaft 27 and having a rounded portion 57 to which. the shaft 27 is lifted. The portion of the shaft 27 which is adapted to turn within the rounded. portion 57 of the arm 56 is cut out and has a flat portion 58 (see Fig. which clears the upper end of the arm 56 just as the plug 4 7 strikes the stop l0 and thereby permits the shaft 27 and link 28 to be raised, as the stop arm 45 comes into on; c neut with the vertical face 1-6. The shaft :1 and link 28 may now be mised from the position shown in Fig. l to the position shown in Fig. 5 with the stop arm 45 sliding against the vertical face 4-6; and, during this oporatie'rn, the shaft 27 is preented. from turning in either direction by the arm 45 sliding; against the vertical face 46 and by a lateral projection on the arm 41:5 sliding against a vertical rib 60 formed on a. part of the frame.

I shall now describe the devices for turn iug and raising the carrier arm. 26. Pivoteil, at 61, to the carrier arm 26 is the lower end. of a link 62 the upper end of which is pivoted, at 63, to an arm 641 projecting fixedly from a rockable shaft 65 which is located above the shaft 27 and mounted to turn in bearings 66 on the frame 2. The link 62 and its connections are so located with respect to each other that when the shaft 65 is turned to move the arm 64: from the normal position shown in Fig. 3 to the position shown. in Fig. 5. the shaft 65 and arm 6 1; will, during the initial movement of the arm 61, be turned. from the position shown in Fig. 8 to the position shown in Fig. l; and, during the final movement of the arm 6-1, be raised from the position shown in Fig. -%lto the position shown in Fig. 5. The arm 64: and link 62 are held down in the nori'nal position, holding the carrier arm 26 against the stop 38 and the other parts of the staple setting mechanism in the normal position shown in Figs. 1, 2 and 3 by a spring 67 one end of which is attached to a bracket 68 secured to a floor he neath the table or support 5 for the machine frame, and the other end of which is attached to a chain 60 which passes around a roller 70 turning on a.v study on the link 28 and which is attached to an arm 71 projecting from the shaft 65 as clearly shown in Fig. 2.

In the present embodiment of my invention the shaft 65 is adapted to be turned by foot power against the action of the spring 67 from the position shown in Fig. 3 to the position shown in Fig. 5, as follows: Secured to and projecting from the shaft 65 is an arm or member 72 having a hook 73 which engages a. link 7% on the upper end of a chain 75 which bears upon a curved portion 7 6 of the arm or member 7 2 and extends downwardly therefrom and has its lower end connected to the outer end of an arm 7 8 which is pivoted, at 79, on the floor bracket 68. The arm 78 is provided with a pair of upwardly-extending lugs 80 which embrace a link 81 having one end pivoted at 82 to the lugs 80. The other end of the link 81 is pivoted, at 83, to the upper end of one arm 841 of a foot lever or pedal 85 which is pivoted or fulcrumed, at 86 on the floor bracket 68. The other arm 87 of the lever 85 extends forwardly of the fulcrum 86 and has a pad 88 on its forward end adapted to receive the foot of a person operating the machine. When the lever or pedal 85 is do pressed from the full line position shown in Fig. 2 to the dot-and-dash line position shown therein, the shaft 65 is turned to move the carrier arm 26 from the position shown in Fig. 3 to the position shown in Fig. 5, as previously explained; and when the pressure upon the foot pedal is removed, the spring 67 returns the parts to the normal position. The two fixed pivots 79 and 86 are so located relatively to each other and to the two movable pivots 82 and 83 that the leverage or downward pressure upon the arm 64: is much greater just as the foot pedal completes its downward movement to the dotand-dash line position than it was during the initial downward movement of the foot pedal 85, due to the body of the link 81 moving over the pivot 82 and the change in position of the movable pivots 82 and 83 relatively to the fixed pivots 7 9 and 86. This construction permits the machine to be operated by substantially uniform pressure upon the foot pedal 85 during the entire movement of the staple carrying and setting arm 26 from the normal position shown in F ig. 3 to the staple setting position shown in Fig. 5, notwithstanding the fact that greater pressure is required to operate the arm 26 during its final or upward movement when the staple 13 is forced through the work and clenched against the anvil 30, than during the first movement of the arm 26 from the position shown in Fig. 3 to the position shown in Fig. 1.

When the carrier arm 26 is in the positions shown in Figs. 4 and 5, the staple inserting arm 21 is in the position shown in Figs. 4 and 5 with the projection 23 of the plate 20 receiving a. staple from the row 13, and with the arm 21 resting against a pin 90. This pin 90 is slidable within an opening 91 in the. frame 2 and it is provided with a stem 92 which extends outwardly through and beyond the outer end wall 93 of the opening 91, the outer end of the stem 92 being provided with a nut 94 adapted to engage the wall 93 and limit the inward movement of the pin 90. The pin 90 is forced normally inward by a spring 95 which encircles the stem 92 between the pin 90 and wall 93. As the arm 64 on the rockable shaft completes its return movement to the position shown in .Fig. 3 to return the carrier arm 26 to normal position, the carrier arm 26 is not moved to any appreciable extent, due to the fact that the pivotal connection 63 between the link 62 and arm 64 is passing the center line between shaft 65 and the pivotal connection 61 between the link 62 and the carrier arm 26, as will be readily understood. Now, as the pivotal connection '63 thus passes the center, the staple-receiving opening 24 in the block 25 is in registry with the projection 23 and in position to receive a staple therefrom, and

a projection 96 on the arm 64 engages a projection 97 on the arm 21 and moves the arm 21 from the position shown in Fig. 4 to the position shown in Fig. 3, against the action of the spring 95, and inserts a staple into the opening 24, as the parts come to rest in the normal position shown in Fig. 3. When the arm 64 is again moved from the normal position, the spring 95 is permitted to move the arm 21 back to the position shown in Fig. 4, withdrawing the projection 23 from the staple previously inserted into the opening 24 before the carrier arm 26 moves to any appreciable extent in being moved from the normal position to the position shown in Fig.4. It will thus be understood that each time the carrier arm 26 is returned to the normal position, the staple inserting arm 21 is operated to move a staple fromthe magazine 7 and insert it into the opening 24 in the block 25.

When the staple carrier or arm 26 is moved from the normal position to the position shown in Fig. 4, the free end of the arm 26 and its block 25 carrying a staple enter a work supporting guard 98 secured to the lower end of a vertically movable arm 99 which is supported normally in the position shown in Figs. 3 and 4.b v the shaft 65. The arm 99' has a slot 100 therein through which the shaft 65 extends and by which the arm 99 is guided, and the arm 99 is further guided by parts 101 and 102 of the frame 2 and magazine 7 to which the arm 99 is slidably fitted. The guard 98 is shaped as shown and comprises a top wall 103 and side walls 104 extending downwardly from the sides thereof and between which the free end of the carrier 26 and its block 25 are received beneath the top wall and through which the upper portion of the block 25 is adapted to pass when the carrier 26 is moved upwardly. WVhen the carrier 26 is moved upwardly from the position shown in Fig. 4 to the position shown in Fig. 5, the carrier or arm 26 engages the bottom of the top wall 103 of the guard 98 and raises theguard and its supporting arm 99 from the normal position shown in Figs. 3 and 4 to the position shown in Fig. 5; and, when the carrier 26 is returned to thc position shown in Fig. 4, the guard 98 and its arm 99 return therewith by gravity to their normal position shown in Fig. 4. The work supporting guard 98 is adapted to receive and support the work or article which is to receive the staple, when the parts are in the normal position, and support the work or article over theopening 105 in the guard 98 and between the guard 98 and the anvil 30 to receive the staple when the guard 98 and the work supported thereon are raised by the arm 26 during the staple setting operation.

The operation of the machine, briefly described, is as follows: The article in which it is desired to set the staple, such, for example, as the shoe 106 shown in Fig. 5, is first placed upon the work supporting guard 98 when the machine is in the normal position, the portion of the article in which it is desired to set the staple being placed over the opening 105 in the guard. The foo-t pedal is then depressed from the full line position to the dot-and-dash line position shown. in Fig. 2. This operation turns the shaft 65 and moves the projection 96 on the arm 64 away from the projection 97 on the arm 21 and permits the spring pin to move the arm 21 to the position shown in Fig. 4 to withdraw the staple-inserting proection 23 from the opening 24 in the block and the staple it previously inserted therein. During the continued turning of the'shaft 65, the link 62 turns the carrier or arm 26 to the position shown in Fig. 4, the plug 47 in the arm 48 striking the stop 49 and raising the arm. 26 and link 28 on the pivot 29 slightly and raising the upper end of the block 25 into the opening in the guard 98, just before the stop arm 45 strikes the vertical face 46 of the frame 2 and prevents further turning of the shaft 27. The continued turning of the shaft 65 by the pedal 85 to the dot-and-dash line position now causes the link 62 to raise the arm 26 and link 28 to the position shown in Fig. 5 while the stop arm 45 slides up the vertical face 46 of the frame 2 and prevents the further turning of the shaft 27 As the arm 26 is thus raised from the position shown in Fig. 4 to the position shown in F ig. 5, the arm 26 engages the bottom of the top wall 103 of the guard 98 and raises it and the work or shoe 100 held in place thereon by hand. In Fig. 5 I have shown the shoe 106 and a bow or other ornament 107 being secured to the top thereof by a staple. Therefore, as the arm 26 moves up, the block first moves up through the opening 105 and raises the shoe 100 until the arm 26 strikes the guard 98, whereupon the guard 98 is moved therewith. As the arm 26 continues its upward movement the portion of the shoe 106 and the portion of the ornament 107 thereon between the top of the block 25 and the bottom of the anvil are clamped between the block 25 and the anvil 30 against the action of the spring while the upward movement of the arm 26 raises the staple setting plate 85 within the block and forces the prongs or legs of the staple 13 up through the shoe 100 and ornament 107 and against the anvil 30 which turns the ends of the prongs or legs of the staple toward each other and clenches them in the usual manner, the anvil 30 having the usual prong turning depression therein for this purpose. lVhen the foot pedal 85 is thus moved to the dot-and-dash line position the shaft is turned against the action of the spring 67 which, when the pedal is released returns the parts of the machine to the normal position, moving the carrier arm 26 back to the position shown in Fig. 3, and, as it completes its movement to this position, moving the projection 96 into engagement with the projection 97 on the arm 21 and moving the arm 21 from the position shown in Fig. t back to the position shown in Fig. 3 and causing the projection to move the innermost staple 13 from the magazine 7 into the opening 21: in, the block 23 for a succeeding}; operation.

It will be observed that the block 25 or staple-carrying end of the arm 26, in moving from the source of staple supply to the staple-setting position shown in Fig. 5, is first moved in one direction which is around the shaft 27, and then in another direction by the bodily upward movement of the shaft 1 27 and arm 26; and it will also be observed that, during this operation, the staple carrying'and setting devices, in coming into the position shown in Fig. 4 adjacent to the anvil 30, move in a direction transversely to the direction of movement of the said devices in moving from the position shown in Fig. 4 to the position shown in Fig. 5. This is an important feature of my invention, as it enables me to automatically supply the staple carrying and setting devices with staples and to move said devices from the source of staple supply into comparatively small hol low objects before the final movement of the movable staple-carrier, means to cause said carrler to receive and carry a staple from the 1 source of supply into a hollow article which is to be stapled from the interior of the article outward, a movable work-support actuated by said carrier and adapted to be brought thereby into operative position J relatively to said fixed staple-setting anvil,

- and actuating devices to impart to said elements the cycle of movements stated to suecessively insert and set the staple.

2. In a staple setting machine, the combination of a supporting frame, a movable work supporting member, staple-supplying means, a staple carrier, with means to cause said staple-carrier to carry a staple from the source of supply to the interior of a hollow article to be stapled, by a movement of said carrier, first in a direction transversely to the prongs of the staple carried thereby, and then in a direction parallel to said prongs; a fixed staple-setting anvil, and means to operatively actuate said work supporting member during the aforesaid second movement of the staple carrier.

8. In a staple-setting machine, the combination of a supporting frame, a movable sup port thereon, a staple carrier movable on said support, staple-supplying means, a fixed staple-setting anvil, and means operative to impart motion to said carrier on said support in a direction transversely to the prongs I of a staple carried by the carrier to a staplesetting position within the interior of a hollow article to be stapled from the interior outward, and thereafter to impart motion to said support and said carrier in a direc tion parallel to said prongs and toward said anvil to set the staple.

4. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supporting means, a staple setting anvil, a work-supporting guard adjacent to but spaced from said anvil, and means operative to move said carrier first in one direction from said staple supplying means to a position adjacent to said anvil and then in another direction toward said anvil to set a staple.

5. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supplying means, a staple setting anvil, a work-supporting guard adjacent to but spaced from said anvil and means operative to move said carrier first in one direction from said staple supporting means to a position adjacent to said anvil and then in another direction toward said anvil toset a staple, said guard moving with said carrier when said carrier moves toward said anvil to set a staple.

6. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supplying means, a staple setting anvil, a work-supporting guard having a free forward end portion extending substantially horizontally beneath said anvil in spaced relation thereto said end portion being supported rearwardly of said anvil, and means operative to move said carrier from said staple supplying means first to a position adacent to said guard and then toward said anvil to set a staple.

7. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supplying means, a staple setting anvil, a work-supporting guard having a free forward end portion extending substan tially horizontally beneath said anvil in spaced relation thereto said end portion being supported rearwardly of said anvil, and means operative to move said carrier from said staple supplying means first to a position adjacent to said guard and then toward said anvil to set a staple, said guard moving with said carrier when said carrier moves toward said anvil to set a staple.

8. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supplying means, a staple setting anvil, a work-supporting guard having a free forward end portion extending substantially horizontally beneath said anvil in spaced relation thereto said end portion being supported rearwardly of said anvil, and means operative to move said carrier from said staple supplying means first to a position adjacent to said guard and then upwardly from said position toward said anvil to set a staple, said carrier moving substantially in a horizontal direction as it is moved into said position adjacent to said guard.

9. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supplying means, a staple setting anvil, a work-supporting guard having a free forward end portion extending substantially horizontally beneath said anvil in spaced relation thereto said end portion being supported rearwardly of said anvil, and means operative to move said carrier from said staple supplying means first to a position adjacent to said guard and then upwardly from said position toward said anvil to set a staple, said carrier moving substantially in a horizontal direction as it is moved into said position adjacent to said guard,

and said guard moving with said carrier when said carrier moves toward said anvil to set a staple.

10. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supplying means, a staple set ting anvil, a work-supporting guard having a free forward end portion extending substantially horizontally beneath said anvil in spaced relation thereto said endportion being supported rearwardly of said anvil, and means operative to move said carrier from said staple supplying means first to a position beneath said guard and then upwardly from said position toward said anvil to set a staple, said carrier moving substantially in a horizontal direction as it is moved into said position adjacent to said guard, and said guard being moved upwardly by said carrier when said carrier moves toward said anvil to set a staple.

11. In a staple setting machine, the combination of a supporting frame, staple sup plying means, a staple setting anvil, a worksupporting guard adjacent to but spaced from said anvil, a pivoted staple carrier movable downwardly and forwardly on its pivot from said staple supplying means to a position adjacent to said anvil, and means operative to move said carrier.

12. In a staple setting machine, the combination of a. supporting frame, staple supplying means, a staple setting anvil, a worksupporting guard adjacent to but spaced from said anvil, a pivoted staple carrier movable downwardly and forwardly on its pivot from said staple supplying means to a position adjacent to said anvil, a rockable shaft operatively connected to said carrier, and means operative to rock said shaft.

13. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a worksupporting guard adjacent to but spaced from said anvil, a pivoted staple carrier movable downwardly and forwardly on its pivot from said staple supplying means to a position adjacent to said anvil, a roclrable shaft mounted to turn in said frame and having a projecting arm, a link connecting said carrier and said arm, and means operative to rock said shaft.

14:. In a staple setting machine, the combination of a supporting frame, staple sup plying means, a staple setting anvil, a pivoted staple carrier first movable on a fixed turning axis to move a part thereof from said staple supplying means to a position adjacent to said anvil and then movable bodily away from said fixed turning axis to move said part toward said anvil to set a staple, and means operative to move said carrier.

15. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a shaft, means to support and guide said shaft to turn on a fixed axis and then move bodily away from said axis, a staple carrier carried by said shaft and movable therewith first on said fixed axis to move a part of said carrier from said staple S11] )plylI1P means to a position adjacent to said anvil and then toward said anvil to set a staple when said shaft is bodily moved away from said axis, and means operative to first turn said shaft on said axis and then move it bodily away from the same.

16. In a staple setting machine, the combination of a supporting frame, staple supplying means, a. staple setting anvil, a shaft, means to supportand guide said shaft to turn on a fixed axis and then move bodily away from said axis, a staple carrier carried by said shaft and movable therewith first on said fixed axis to move a part of said car rier from said staple supplying means to a position adjacent to said anvil and then toward said anvil. to set a staple when said shaft is bodily moved away from said axis, a rockable shaft mounted to turn in said frame and having a. projecting arm, a link connecting said carrier and said arm, and means operative to turn said rockable shaft.

17. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a vertically movable member, a shaft rotatable in said member, a staple carrier carried by said shaft and movable therewith first from said staple supplying means to a position adjacent to said anvil when said shaft is turned, and then toward said anvil to set a staple when said member is moved, means operative to first turn said shaft and then move said member, means to prevent the movement of said member during the turning of said shaft, and means to prevent the turning of said shaft during the movement of said member. 1

18. In a staple setting machine, the combination of a supporting frame, staple sup plying means, astaple setting anvil, a verti eally movable member pivoted to said frame, a shaft rotatable in said member, a staple carrier carried by said shaft and movable therewith first from said staple supplying means to a position adjacent to said anvil when said shaft is turned, and then toward said anvil. to set a staple when said mem her is moved, means operative to first turn said shaft and then move said member, means to prevent the movement of said member during the turning of said shaft, and means to prevent the turning of said shaft during the movement of said member.

10. In a staple setting machine, the com bination of a supporting frame, staple supplying means, a staple setting anvil, a vertically movable member, a shaft rotatable in said member, a staple carrier carried by said shaft and. movable therewith first from said staple supplying means to a position adjacent to said anvil when said shaft is turned, and then toward said anvil to set a staple when said member is moved, a rockable shaft mounted to turn in a bearing on said frame, means connecting said shaft and operative to first turn the first named shaft and then move said member when said rockable shaft is turned, means operative to turn said rockable shaft, means to prevent the movement of said member during the turning of said shaft, and means to prevent the turning of said shaft during the movement of said member-.2

20. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a vertically movable member, a shaft rotatable in said member, a staple carrier carried by said shaft and movable therewith first from said staple supplying means to a position adjacent to said anvil when said shaft is turned, and then toward said anvil to set a staple when said member is moved, a rockable shaft mounted to turn in a bearing on said frame and having a projecting arm, a link connecting said carrier and said arm and adapted to first turn it and the first named shaft and then move said member when said rockable shaft is turned, means operative to turn said rockable shaft, means to prevent the movement of said member during the turning of said shaft, and means to prevent the turning of said shaft during the movement of said member.

21. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supplying means, a staple setting anvil, a work supporting guard adjacent to but spaced from said anvil, and means operative to move said carrier in a direction transversely to the prongs of a staple carried thereby from said staple applying means to a position adjacent to but spaced from said anvil and then in a direction par allel to said prongs toward said anvil to set a staple.

22. In a staple setting machine. the combination of a supporting frame, a staple carrier provided with a part having a staple re ceiving opening therein, staple supplying means, a staple setting anvil, means operative to move said carrier downwardly and forwardly from said staple supplying means to said anvil and back to said staple supplying means, and means operative to move a staple from said staple supplying means to said carrier, the last named means including a part movable into and from said opening.

23. In a staple setting machine, the com bination of a supporting frame, a staple carrier, staple supplying means, a staple setting anvil, opeii'ative means to move said carrier from said staple supplying means to said anvil and back to said staple supplying means, and a staple moving arm operated by said operative means to move a staple from said staple supplying means to said carrier.

24:. In a staple setting machine, the combination of a supporting frame, a staple carrier, staple supplying means, a staple setting anvil, operative means to move said carrier from said staple supplying means to said anvil and back to said staple supplying means, and a staple moving arm operated by said operative means to move a staple from said staple supplying means to said carrier, said operative means including a shaft, an arm thereon and a link pivoted at one end to said arm and pivoted at the other end to a part operated thereby, the pivotal connection of one end ofsaid link passing the center line between the pivot of the other end of said link and said shaft or substantially so during the operation of said staple moving arm and substantially holding said carrier at rest during the operation of the staple moving arm.

25. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a pivoted staple carrier movable on its pivot from said staple supplying means to said anvil and back to said staple supplying means, a staple moving arm operative to move a staple from said staple supplying means to said carrier, a rockable shaft, means operative to rock said shaft, and means operated by said shaft to move said carrier and said arm. 7

26. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a pivoted staple carrier movable on its pivot from said staple supplying means to said anvil and back to said staple supplying means, a staple moving arm operative to move a staple from said staple supplying means to said carrier, a rockable shaft having a projecting arm adapted to operate said staple moving arm, a link connecting said carrier and said projecting arm, and means operative to rock said shaft.

27. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a pivoted staple carrier movable on its pivot from said. staple supplying means to said anvil and back to said staple supplying means, a staple moving arm operative to move a staple from said staple supplying means to said carrier, a rockable shaft having a pro- 'ectin arm adapted to oierate said staple .l a 1 moving arm, a link pivoted at one end to said projecting arm and pivoted at the other end to said carrier. the pivotal connection of said link and said projecting arm passing the center line between said shaft and the pivotal connection between said link and said carrier or substantially so during the operation of said staple moving arm by said projecting arm and substantially holding said carrier at rest during the operation of said staple moving arm, and means operative to rock said shaft.

28. In a staple setting machine, the combination of a supporting frame, a staple setting anvil, a carrier movable toward and from the anvil and having a guide opening therein, a staple setting plate, a pin securing said plate to said carrier, a block slidably fitted within said opening and within which said plate is located, said block having a staple receiving opening therein in which said plate is adapted to be moved, and said block having a slot therein through which said pin extends to permitrelative movement between them, and yielding means permitting said block to move relatively to said carrier and said plate.

29. In a staple setting machine, the combination of a supporting frame, a staple setting anvil, a carrier movable toward and from the anvil and having a guide opening therein, a staple setting plate, a pin securing said plate to said carrier, a block slidably fitted within said opening and within which said plate is located, said block having a staple receiving opening therein in which said plate is adapted to be moved, and said block having a slot therein through which said pin extends to permit relative movement between them, a lever fulcrumed on the carrier, and a spring forcing said lever against said block and forming a yielding means permitting said block to move relatively to said carrier and said plate.

30. In a staple setting machine, the combination of a supporting frame, a staple set ting mechanism requiring greater power to operate it during its final movement than during its initial movement from its normal position to its position upon the completion of the setting of a staple, and means operative to move said mechanism from said normal position to the second named position,

means to operatively connect said foot lever to said mechanism, said means being constructed and arranged to increase the operative force of said pedal during the movement thereof.

In a staple setting machine, the combination of a supporting frame, staple setting mechanism requiring greater power to operate it during its final movement than during its initial movement from its normal position to its position upon the completion of the setting of a staple, a foot lever, a foot lever support, an arm pivoted to the foot lever support and operatively connected to said. mechanism, and a link pivoted to the foot lever above the pivot of said arm.

In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a shaft, means to support and guide said shaft to turn ona fixed axis and then move bodily away from said axis, a staple carrier carried by said shaft and movable therewith first on said fixed axis to move a part of said carrier from said staple supplying means to a position adjacent to said anvil and then toward said anvil to set a staple when said shaft is bodily moved away from said axis, and

means operative to first turn said shaft on said axis and then move it bodily away from the same, the last named means exerting greater force during the bodily movement of said shaft away from said axis than during the turning of said shaft on said axis.

34:. In a staple setting machine,the combination of a supporting frame, staple sup" plying means, a staple setting anvil, a vertically movable member, a shaft rotatable in said member, a staple carrier carried by said shaft and movable therewith first from said staple supplying means to a position adjacent to said anvil when said shaft is turned, and then toward said anvil to set a staple when said member is moved, means to prevent the movement of said member during the turning of said shaft, means to prevent the turning of said. shaft during the movement of said member, and means operative to first turn said shaft and then move said member, the last named means exerting greater force during the movement of said member than during the turning of said shaft.

35. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a vertically movable member, a shaft rotatable in said member, a staple carrier carried by said shaft and movable therewith first from said staple supplying means to a position adjacent to said anvil when said shaft is turned, and then toward said anvil to set a staple when said member is moved, a rockable shaft mounted to turn in a bearing on said frame, means connecting said shafts and operative to first turn the first named shaft and then move said member when said rockable shaft is turned, means to prevent the movement of said member during the turning of said shaft, means to prevent the turning of said shaft during the movement of said member, and means operative to turn said rockable shaft, the last named means exerting greater force during the movement of said member than during the turning of the first named shaft.

36. In a staple setting machine, the combination of a supporting frame, staple supplying means, a staple setting anvil, a vertically movable member, a shaft rotatable in said member, a staple carrier carried by said shaft and movable therewith first from said staple supplying means to a position adjacent to said anvil when said shaft is turned,-

and then toward said anvil to set a staple when said member is moved, a rockable shaft mounted to turn in a bearing on said frame and having a projecting arm, a link connecting said carrier and said arm and adapted to first turn it and the first named shaft and then move said member when said rockable shaft is turned, means to prevent the movement of said member during the turning of said shaft, means to prevent the turning of said shaft during the movement of said member, and means operative to turn said rockable shaft, the last named means exerting greater force during the movement of said member than during the turning of the first named shaft.

In testimony whereof, I have hereunto ailixed my signature this lath day of May, A. D. 1915.

ELWOOD H. MICHENER.

Witnesses JOHN G. MAcKY, Honaon PAUL DORMON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washingon, D. G. 

